using System;

public class Program

{

    public static void Main()

    {

        {

            int year;

            Console.Write("Enter the year in four digits : ");

            year = Convert.ToInt32(Console.ReadLine());

            if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))

            {

                Console.WriteLine(year + " is a Leap Year ");

            }

            else

            {

                Console.WriteLine(year + " is not a Leap Year ");

            }

        }

    }

}